Gold has a density of about 20g/mL. If I had a 60g sample, it should have a volume of about ___mL.

3mL

Explanation:

Density = mass/volume

Give the density of gold as 20g/mL and the mass as 60g

Volume v = ?

Using the above formula

20 = 60/v

Cross multiply

20v = 60

Divide both sides by 20

20v/20 = 60/20

v = 3mL

Therefore the gold of density 20g/mL and mass 60g has a volume of about 3mL

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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